src/ecosboard.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2009 by Øyvind Harboe                              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "types.h"
  25 #include "jtag.h"
  26 #include "configuration.h"
  27 #include "xsvf.h"
  28 #include "svf.h"
  29 #include "nand.h"
  30 #include "pld.h"
  31
  32 #include "server.h"
  33 #include "telnet_server.h"
  34 #include "gdb_server.h"
  35 #include "openocd.h"
  36
  37 #include <time_support.h>
  38 #include <sys/time.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <unistd.h>
  43 #include <errno.h>
  44
  45 #include <cyg/io/flash.h>
  46 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  47 #include <network.h>
  48
  49 #include <fcntl.h>
  50 #include <sys/stat.h>
  51 #include <cyg/fileio/fileio.h>
  52 #include <dirent.h>
  53 #include <cyg/athttpd/http.h>
  54 #include <cyg/athttpd/socket.h>
  55 #include <cyg/athttpd/handler.h>
  56 #include <cyg/athttpd/cgi.h>
  57 #include <cyg/athttpd/forms.h>
  58 #include <cyg/discover/discover.h>
  59 #include <cyg/hal/hal_diag.h>
  60 #include <cyg/kernel/kapi.h>
  61 #include <cyg/io/serialio.h>
  62 #include <cyg/io/io.h>
  63 #include <netinet/tcp.h>
  64 #include "rom.h"
  65 #include <sys/ioctl.h>
  66 #include <sys/socket.h>
  67 #include <netinet/in.h>
  68 #include <net/if.h>
  69 #include <arpa/inet.h>
  70 #include <sys/types.h>
  71 #include <sys/socket.h>
  72 #include <netdb.h>
  73 #include <netinet/in.h>
  74 #include <unistd.h>
  75 #include <arpa/inet.h>
  76 #include <stdio.h>
  77 #include <ifaddrs.h>
  78 #include <string.h>
  79
  80 #include <unistd.h>
  81 #include <stdio.h>
  82
  83
  84 #ifdef CYGPKG_HAL_NIOS2
  85 #define ZY1000_SER_DEV "/dev/uart_0"
  86 #else
  87 #define ZY1000_SER_DEV "/dev/ser0"
  88
  89 #endif
  90
  91
  92 #define MAX_IFS 64
  93 #if defined(CYGPKG_NET_FREEBSD_STACK)
  94 #include <tftp_support.h>
  95 /* posix compatibility broken*/
  96 struct tftpd_fileops fileops =
  97 {
  98         (int (*)(const char *, int))open,
  99         close,
 100         (int (*)(int, const void *, int))write,
 101         (int (*)(int, void *, int))read
 102 };
 103
 104 #endif
 105
 106
 107 void diag_write(char *buf, int len)
 108 {
 109         int j;
 110         for (j = 0; j < len; j++)
 111         {
 112                 diag_printf("%c", buf[j]);
 113         }
 114 }
 115
 116 static bool serialLog = true;
 117 static bool writeLog = true;
 118
 119 char hwaddr[512];
 120
 121
 122 extern struct flash_driver *flash_drivers[];
 123 extern struct target_type *target_types[];
 124
 125 #ifdef CYGPKG_PROFILE_GPROF
 126 #include <cyg/profile/profile.h>
 127
 128 extern char _stext, _etext; // Defined by the linker
 129
 130 static char *start_of_code=&_stext;
 131 static char *end_of_code=&_etext;
 132
 133 void start_profile(void)
 134 {
 135         // This starts up the system-wide profiling, gathering
 136         // profile information on all of the code, with a 16 byte
 137         // "bucket" size, at a rate of 100us/profile hit.
 138         // Note: a bucket size of 16 will give pretty good function
 139         //       resolution.  Much smaller and the buffer becomes
 140         //       much too large for very little gain.
 141         // Note: a timer period of 100us is also a reasonable
 142         //       compromise.  Any smaller and the overhead of
 143         //       handling the timter (profile) interrupt could
 144         //       swamp the system.  A fast processor might get
 145         //       by with a smaller value, but a slow one could
 146         //       even be swamped by this value.  If the value is
 147         //       too large, the usefulness of the profile is reduced.
 148
 149         // no more interrupts than 1/10ms.
 150         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 151         //      profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 152         profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
 153 }
 154 #endif
 155
 156 static FILE *log;
 157
 158 static char reboot_stack[2048];
 159
 160 static void zylinjtag_reboot(cyg_addrword_t data)
 161 {
 162         serialLog = true;
 163         diag_printf("Rebooting in 500 ticks..\n");
 164         cyg_thread_delay(500);
 165         diag_printf("Unmounting /config..\n");
 166         umount("/config");
 167         diag_printf("Rebooting..\n");
 168         HAL_PLATFORM_RESET();
 169 }
 170 static cyg_thread zylinjtag_thread_object;
 171 static cyg_handle_t zylinjtag_thread_handle;
 172
 173 void reboot(void)
 174 {
 175         cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
 176                         (void *) reboot_stack, sizeof(reboot_stack),
 177                         &zylinjtag_thread_handle, &zylinjtag_thread_object);
 178         cyg_thread_resume(zylinjtag_thread_handle);
 179 }
 180
 181 static char zylinjtag_reboot_port_stack[2048];
 182 static cyg_thread zylinjtag_reboot_port_thread_object;
 183 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
 184
 185 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
 186 {
 187         int so_reuseaddr_option = 1;
 188
 189         int fd;
 190         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 191         {
 192                 LOG_ERROR("error creating socket: %s", strerror(errno));
 193                 exit(-1);
 194         }
 195
 196         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 197                         sizeof(int));
 198
 199         struct sockaddr_in sin;
 200         unsigned int address_size;
 201         address_size = sizeof(sin);
 202         memset(&sin, 0, sizeof(sin));
 203         sin.sin_family = AF_INET;
 204         sin.sin_addr.s_addr = INADDR_ANY;
 205         sin.sin_port = htons(1234);
 206
 207         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 208         {
 209                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 210                 exit(-1);
 211         }
 212
 213         if (listen(fd, 1) == -1)
 214         {
 215                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 216                 exit(-1);
 217         }
 218         //      socket_nonblock(fd);
 219
 220
 221         accept(fd, (struct sockaddr *) &sin, &address_size);
 222
 223         diag_printf("Got reboot signal on port 1234");
 224
 225         reboot();
 226
 227 }
 228
 229 void reboot_port(void)
 230 {
 231         cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
 232                         (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
 233                         &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
 234         cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
 235 }
 236
 237 int configuration_output_handler(struct command_context *context,
 238                 const char* line)
 239 {
 240         diag_printf("%s", line);
 241
 242         return ERROR_OK;
 243 }
 244
 245 int zy1000_configuration_output_handler_log(struct command_context *context,
 246                 const char* line)
 247 {
 248         LOG_USER_N("%s", line);
 249
 250         return ERROR_OK;
 251 }
 252
 253 #ifdef CYGPKG_PROFILE_GPROF
 254
 255 int eCosBoard_handle_eCosBoard_profile_command(struct command_context *cmd_ctx, char *cmd, char **args, int argc)
 256 {
 257         command_print(cmd_ctx, "Profiling started");
 258         start_profile();
 259         return ERROR_OK;
 260 }
 261
 262 #endif
 263
 264 externC void phi_init_all_network_interfaces(void);
 265
 266 struct command_context *cmd_ctx;
 267
 268 static bool webRunning = false;
 269
 270 void keep_webserver(void)
 271 {
 272         // Target initialisation is only attempted at startup, so we sleep forever and
 273         // let the http server bail us out(i.e. get config files set up).
 274         diag_printf("OpenOCD has invoked exit().\n"
 275                 "Use web server to correct any configuration settings and reboot.\n");
 276         if (!webRunning)
 277                 reboot();
 278
 279         // exit() will terminate the current thread and we we'll then sleep eternally or
 280         // we'll have a reboot scheduled.
 281 }
 282
 283 extern void printDccChar(char c);
 284
 285 static char logBuffer[128 * 1024];
 286 static const int logSize = sizeof(logBuffer);
 287 int writePtr = 0;
 288 int logCount = 0;
 289
 290 void _zylinjtag_diag_write_char(char c, void **param)
 291 {
 292         if (writeLog)
 293         {
 294                 logBuffer[writePtr] = c;
 295                 writePtr = (writePtr + 1) % logSize;
 296                 logCount++;
 297         }
 298         if (serialLog)
 299         {
 300                 if (c == '\n')
 301                 {
 302                         HAL_DIAG_WRITE_CHAR('\r');
 303                 }
 304                 HAL_DIAG_WRITE_CHAR(c);
 305         }
 306
 307 #ifdef CYGPKG_HAL_ZYLIN_PHI
 308         printDccChar(c);
 309 #endif
 310 }
 311
 312 void copyfile(char *name2, char *name1);
 313
 314 void copydir(char *name, char *destdir);
 315
 316 #if 0
 317 MTAB_ENTRY(romfs_mte1,
 318                 "/rom",
 319                 "romfs",
 320                 "",
 321                 (CYG_ADDRWORD) &filedata[0]);
 322 #endif
 323
 324 void openocd_sleep_prelude(void)
 325 {
 326         cyg_mutex_unlock(&httpstate.jim_lock);
 327 }
 328
 329 void openocd_sleep_postlude(void)
 330 {
 331         cyg_mutex_lock(&httpstate.jim_lock);
 332 }
 333
 334 void format(void)
 335 {
 336 #ifdef CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1
 337         diag_printf("Formatting JFFS2...\n");
 338
 339         cyg_io_handle_t handle;
 340
 341         Cyg_ErrNo err;
 342         err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
 343         if (err != ENOERR)
 344         {
 345                 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
 346                 reboot();
 347         }
 348
 349         cyg_uint32 len;
 350         cyg_io_flash_getconfig_devsize_t ds;
 351         len = sizeof(ds);
 352         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
 353         if (err != ENOERR)
 354         {
 355                 diag_printf("Flash error cyg_io_get_config %d\n", err);
 356                 reboot();
 357         }
 358
 359         cyg_io_flash_getconfig_erase_t e;
 360         len = sizeof(e);
 361
 362         e.offset = 0;
 363         e.len = ds.dev_size;
 364
 365         diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
 366         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
 367         if (err != ENOERR)
 368         {
 369                 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
 370                 reboot();
 371         }
 372
 373         diag_printf("Flash formatted successfully\n");
 374 #endif
 375
 376         reboot();
 377 }
 378
 379 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
 380                 Jim_Obj * const *argv)
 381 {
 382         if (argc != 1)
 383         {
 384                 return JIM_ERR;
 385         }
 386
 387         format();
 388         for (;;)
 389                 ;
 390 }
 391
 392 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
 393                 Jim_Obj * const *argv)
 394 {
 395         cyg_handle_t thread = 0;
 396         cyg_uint16 id = 0;
 397         Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
 398
 399         /* Loop over the threads, and generate a table row for
 400          * each.
 401          */
 402         while (cyg_thread_get_next(&thread, &id))
 403         {
 404                 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
 405
 406                 cyg_thread_info info;
 407                 char *state_string;
 408
 409                 cyg_thread_get_info(thread, id, &info);
 410
 411                 if (info.name == NULL)
 412                         info.name = "<no name>";
 413
 414                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 415                                 info.name, strlen(info.name)));
 416
 417                 /* Translate the state into a string.
 418                  */
 419                 if (info.state == 0)
 420                         state_string = "RUN";
 421                 else if (info.state & 0x04)
 422                         state_string = "SUSP";
 423                 else
 424                         switch (info.state & 0x1b)
 425                         {
 426                         case 0x01:
 427                                 state_string = "SLEEP";
 428                                 break;
 429                         case 0x02:
 430                                 state_string = "CNTSLEEP";
 431                                 break;
 432                         case 0x08:
 433                                 state_string = "CREATE";
 434                                 break;
 435                         case 0x10:
 436                                 state_string = "EXIT";
 437                                 break;
 438                         default:
 439                                 state_string = "????";
 440                                 break;
 441                         }
 442
 443                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 444                                 state_string, strlen(state_string)));
 445
 446                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
 447                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 448                                 info.set_pri));
 449                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 450                                 info.cur_pri));
 451
 452                 Jim_ListAppendElement(interp, threads, threadObj);
 453         }
 454         Jim_SetResult(interp, threads);
 455
 456         return JIM_OK;
 457 }
 458
 459 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
 460                 Jim_Obj * const *argv)
 461 {
 462         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 463
 464         if (logCount >= logSize)
 465         {
 466                 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
 467                                 % logSize, logSize - logCount % logSize);
 468         }
 469         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
 470
 471         Jim_SetResult(interp, tclOutput);
 472         return JIM_OK;
 473 }
 474
 475 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
 476                 Jim_Obj * const *argv)
 477 {
 478         reboot();
 479         return JIM_OK;
 480 }
 481
 482 static void zylinjtag_startNetwork(void)
 483 {
 484         // Bring TCP/IP up immediately before we're ready to accept commands.
 485         //
 486         // That is as soon as a PING responds, we're accepting telnet sessions.
 487 #if defined(CYGPKG_NET_FREEBSD_STACK)
 488         phi_init_all_network_interfaces();
 489 #else
 490         lwip_init();
 491 #endif
 492         if (!eth0_up)
 493         {
 494                 diag_printf("Network not up and running\n");
 495                 exit(-1);
 496         }
 497
 498         /* very first thing we want is a reboot capability */
 499         reboot_port();
 500
 501 #if defined(CYGPKG_NET_FREEBSD_STACK)
 502         /*start TFTP*/
 503         tftpd_start(69, &fileops);
 504 #endif
 505
 506         cyg_httpd_init_tcl_interpreter();
 507
 508         interp = httpstate.jim_interp;
 509
 510         Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
 511                         NULL, NULL);
 512         Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
 513                         zylinjtag_Jim_Command_reboot, NULL, NULL);
 514         Jim_CreateCommand(httpstate.jim_interp, "threads",
 515                         zylinjtag_Jim_Command_threads, NULL, NULL);
 516         Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
 517                         zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
 518
 519         cyg_httpd_start();
 520
 521         webRunning = true;
 522
 523         diag_printf("Web server running\n");
 524
 525         int s;
 526         struct ifreq ifr;
 527         s = socket(AF_INET, SOCK_DGRAM, 0);
 528         if (s >= 0)
 529         {
 530                 strcpy(ifr.ifr_name, "eth0");
 531                 int res;
 532                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
 533                 close(s);
 534
 535                 if (res < 0)
 536                 {
 537                         diag_printf("Can't obtain MAC address\n");
 538                         reboot();
 539                 }
 540         }
 541
 542         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
 543                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
 544                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
 545                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
 546                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
 547                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
 548                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
 549
 550         discover_message
 551                         = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
 552
 553         discover_launch();
 554 }
 555
 556 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
 557                 cyg_addrword_t info)
 558 {
 559         writeLog = false;
 560         serialLog = true;
 561         char *infoStr = "unknown";
 562         switch (exception)
 563         {
 564 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 565         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
 566         infoStr = "undefined instruction";
 567         break;
 568         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
 569         infoStr = "software interrupt";
 570         break;
 571         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
 572         infoStr = "abort prefetch";
 573         break;
 574         case CYGNUM_HAL_VECTOR_ABORT_DATA:
 575         infoStr = "abort data";
 576         break;
 577 #endif
 578         default:
 579                 break;
 580         }
 581
 582         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 583
 584         diag_printf("Dumping log\n---\n");
 585         if (logCount >= logSize)
 586         {
 587                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
 588         }
 589         diag_write(logBuffer, writePtr);
 590
 591         diag_printf("---\nLogdump complete.\n");
 592         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 593         diag_printf("\n---\nRebooting\n");
 594         HAL_PLATFORM_RESET();
 595
 596 }
 597
 598 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 599 static void setHandler(cyg_code_t exception)
 600 {
 601         cyg_exception_handler_t *old_handler;
 602         cyg_addrword_t old_data;
 603
 604         cyg_exception_set_handler(exception, print_exception_handler, 0,
 605                         &old_handler, &old_data);
 606 }
 607 #endif
 608
 609 static cyg_thread zylinjtag_uart_thread_object;
 610 static cyg_handle_t zylinjtag_uart_thread_handle;
 611 static char uart_stack[4096];
 612
 613 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
 614 static char backwardBuffer[1024];
 615
 616 void setNoDelay(int session, int flag)
 617 {
 618 #if 1
 619         // This decreases latency dramatically for e.g. GDB load which
 620         // does not have a sliding window protocol
 621         //
 622         // Can cause *lots* of TCP/IP packets to be sent and it would have
 623         // to be enabled/disabled on the fly to avoid the CPU being
 624         // overloaded...
 625         setsockopt(session, /* socket affected */
 626         IPPROTO_TCP, /* set option at TCP level */
 627         TCP_NODELAY, /* name of option */
 628         (char *) &flag, /* the cast is historical
 629          cruft */
 630         sizeof(int)); /* length of option value */
 631 #endif
 632 }
 633
 634 #define TEST_TCPIP() 0
 635
 636 #if TEST_TCPIP
 637 struct
 638 {
 639         int req;
 640         int actual;
 641         int req2;
 642         int actual2;
 643 } tcpipSent[512 * 1024];
 644 int cur;
 645 #endif
 646
 647 static void zylinjtag_uart(cyg_addrword_t data)
 648 {
 649         int so_reuseaddr_option = 1;
 650
 651         int fd;
 652         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 653         {
 654                 LOG_ERROR("error creating socket: %s", strerror(errno));
 655                 exit(-1);
 656         }
 657
 658         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 659                         sizeof(int));
 660
 661         struct sockaddr_in sin;
 662         unsigned int address_size;
 663         address_size = sizeof(sin);
 664         memset(&sin, 0, sizeof(sin));
 665         sin.sin_family = AF_INET;
 666         sin.sin_addr.s_addr = INADDR_ANY;
 667         sin.sin_port = htons(5555);
 668
 669         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 670         {
 671                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 672                 exit(-1);
 673         }
 674
 675         if (listen(fd, 1) == -1)
 676         {
 677                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 678                 exit(-1);
 679         }
 680         //      socket_nonblock(fd);
 681
 682
 683         for (;;)
 684         {
 685                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
 686                 if (session < 0)
 687                 {
 688                         continue;
 689                 }
 690
 691                 setNoDelay(session, 1);
 692                 int oldopts = fcntl(session, F_GETFL, 0);
 693                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
 694
 695                 int serHandle = open(ZY1000_SER_DEV, O_RDWR | O_NONBLOCK);
 696                 if (serHandle < 0)
 697                 {
 698                         close(session);
 699                         continue;
 700                 }
 701
 702 #ifdef CYGPKG_PROFILE_GPROF
 703                 start_profile();
 704 #endif
 705                 size_t actual = 0;
 706                 size_t actual2 = 0;
 707                 size_t pos, pos2;
 708                 pos = 0;
 709                 pos2 = 0;
 710 #if TEST_TCPIP
 711                 cur = 0;
 712 #endif
 713                 for (;;)
 714                 {
 715                         fd_set write_fds;
 716                         fd_set read_fds;
 717                         FD_ZERO(&write_fds);
 718                         FD_ZERO(&read_fds);
 719                         int fd_max = -1;
 720                         FD_SET(session, &read_fds);
 721                         fd_max = session;
 722                         FD_SET(serHandle, &read_fds);
 723                         if (serHandle > fd_max)
 724                         {
 725                                 fd_max = serHandle;
 726                         }
 727                         /* Wait... */
 728
 729                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
 730                         if ((actual == 0) && (actual2 == 0))
 731                         {
 732                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
 733                                 if (retval <= 0)
 734                                 {
 735                                         break;
 736                                 }
 737                         }
 738
 739                         if (actual2 <= 0)
 740                         {
 741                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
 742                                 int t;
 743                                 t = read(serHandle, backwardBuffer,
 744                                                 sizeof(backwardBuffer));
 745                                 actual2 = t;
 746                                 if (t < 0)
 747                                 {
 748                                         if (errno != EAGAIN)
 749                                         {
 750                                                 goto closeSession;
 751                                         }
 752                                         actual2 = 0;
 753                                 }
 754                                 pos2 = 0;
 755                         }
 756
 757                         size_t y = 0;
 758                         if (actual2 > 0)
 759                         {
 760                                 int written = write(session, backwardBuffer + pos2, actual2);
 761                                 if (written <= 0)
 762                                         goto closeSession;
 763                                 actual2 -= written;
 764                                 pos2 += written;
 765                                 y = written;
 766                         }
 767
 768                         if (FD_ISSET(session, &read_fds)
 769                                         && (sizeof(forwardBuffer) > actual))
 770                         {
 771                                 // NB! Here it is important that we empty the TCP/IP read buffer
 772                                 // to make transmission tick right
 773                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
 774                                 pos = 0;
 775                                 int t;
 776                                 // this will block if there is no data at all
 777                                 t = read_socket(session, forwardBuffer + actual,
 778                                                 sizeof(forwardBuffer) - actual);
 779                                 if (t <= 0)
 780                                 {
 781                                         goto closeSession;
 782                                 }
 783                                 actual += t;
 784                         }
 785
 786                         int y2 = 0;
 787                         if (actual > 0)
 788                         {
 789                                 /* Do not put things into the serial buffer if it has something to send
 790                                  * as that can cause a single byte to be sent at the time.
 791                                  *
 792                                  *
 793                                  */
 794                                 int written = write(serHandle, forwardBuffer + pos, actual);
 795                                 if (written < 0)
 796                                 {
 797                                         if (errno != EAGAIN)
 798                                         {
 799                                                 goto closeSession;
 800                                         }
 801                                         // The serial buffer is full
 802                                         written = 0;
 803                                 }
 804                                 else
 805                                 {
 806                                         actual -= written;
 807                                         pos += written;
 808                                 }
 809                                 y2 = written;
 810                         }
 811 #if TEST_TCPIP
 812                         if (cur < 1024)
 813                         {
 814                                 tcpipSent[cur].req = x;
 815                                 tcpipSent[cur].actual = y;
 816                                 tcpipSent[cur].req2 = x2;
 817                                 tcpipSent[cur].actual2 = y2;
 818                                 cur++;
 819                         }
 820 #endif
 821                 }
 822                 closeSession: close(session);
 823                 close(serHandle);
 824
 825 #if TEST_TCPIP
 826                 int i;
 827                 for (i = 0; i < 1024; i++)
 828                 {
 829                         diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
 830                                         tcpipSent[i].req2, tcpipSent[i].actual2);
 831
 832                 }
 833 #endif
 834         }
 835         close(fd);
 836
 837 }
 838
 839 void startUart(void)
 840 {
 841         cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
 842                         (void *) uart_stack, sizeof(uart_stack),
 843                         &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
 844         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
 845         cyg_thread_resume(zylinjtag_uart_thread_handle);
 846 }
 847
 848 int handle_uart_command(struct command_context *cmd_ctx, char *cmd,
 849                 char **args, int argc)
 850 {
 851         static int current_baud = 38400;
 852         if (argc == 0)
 853         {
 854                 command_print(cmd_ctx, "%d", current_baud);
 855                 return ERROR_OK;
 856         }
 857         else if (argc != 1)
 858         {
 859                 return ERROR_INVALID_ARGUMENTS;
 860         }
 861
 862         current_baud = atol(args[0]);
 863
 864         int baud;
 865         switch (current_baud)
 866         {
 867         case 9600:
 868                 baud = CYGNUM_SERIAL_BAUD_9600;
 869                 break;
 870         case 19200:
 871                 baud = CYGNUM_SERIAL_BAUD_19200;
 872                 break;
 873         case 38400:
 874                 baud = CYGNUM_SERIAL_BAUD_38400;
 875                 break;
 876         case 57600:
 877                 baud = CYGNUM_SERIAL_BAUD_57600;
 878                 break;
 879         case 115200:
 880                 baud = CYGNUM_SERIAL_BAUD_115200;
 881                 break;
 882         case 230400:
 883                 baud = CYGNUM_SERIAL_BAUD_230400;
 884                 break;
 885         default:
 886                 command_print(cmd_ctx, "unsupported baudrate");
 887                 return ERROR_INVALID_ARGUMENTS;
 888         }
 889
 890         cyg_serial_info_t buf;
 891         cyg_uint32 len = 1;
 892         //get existing serial configuration
 893         len = sizeof(cyg_serial_info_t);
 894         int err;
 895         cyg_io_handle_t serial_handle;
 896
 897         err = cyg_io_lookup(ZY1000_SER_DEV, &serial_handle);
 898         if (err != ENOERR)
 899         {
 900                 LOG_ERROR("Could not open serial port\n");
 901                 return ERROR_FAIL;
 902         }
 903
 904         err = cyg_io_get_config(serial_handle,
 905                         CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
 906         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
 907                         &len);
 908         if (err != ENOERR)
 909         {
 910                 command_print(cmd_ctx, "Failed to get serial port settings %d", err);
 911                 return ERROR_OK;
 912         }
 913         buf.baud = baud;
 914
 915         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
 916                         &len);
 917         if (err != ENOERR)
 918         {
 919                 command_print(cmd_ctx, "Failed to set serial port settings %d", err);
 920                 return ERROR_OK;
 921         }
 922
 923         return ERROR_OK;
 924 }
 925
 926 bool logAllToSerial = false;
 927
 928
 929 int boolParam(char *var);
 930
 931
 932 struct command_context *setup_command_handler(void);
 933
 934 static const char *zylin_config_dir="/config/settings";
 935
 936 static int add_default_dirs(void)
 937 {
 938         add_script_search_dir(zylin_config_dir);
 939         add_script_search_dir("/rom/lib/openocd");
 940         add_script_search_dir("/rom");
 941         return ERROR_OK;
 942 }
 943
 944 int ioutil_init(struct command_context *cmd_ctx);
 945
 946 int main(int argc, char *argv[])
 947 {
 948         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 949          * need to allocate towards the end of the heap.  */
 950
 951 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 952         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 953         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 954         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 955 #endif
 956
 957         int err;
 958
 959         atexit(keep_webserver);
 960
 961         diag_init_putc(_zylinjtag_diag_write_char);
 962         // We want this in the log.
 963         diag_printf("Zylin ZY1000.\n");
 964
 965         err = mount("", "/ram", "ramfs");
 966         if (err < 0)
 967         {
 968                 diag_printf("unable to mount ramfs\n");
 969         }
 970         chdir("/ram");
 971
 972         char address[16];
 973         sprintf(address, "%p", &filedata[0]);
 974         err = mount(address, "/rom", "romfs");
 975         if (err < 0)
 976         {
 977                 diag_printf("unable to mount /rom\n");
 978         }
 979
 980         err = mount("", "/log", "logfs");
 981         if (err < 0)
 982         {
 983                 diag_printf("unable to mount logfs\n");
 984         }
 985
 986         err = mount("", "/tftp", "tftpfs");
 987         if (err < 0)
 988         {
 989                 diag_printf("unable to mount logfs\n");
 990         }
 991
 992         log = fopen("/log/log", "w");
 993         if (log == NULL)
 994         {
 995                 diag_printf("Could not open log file /ram/log\n");
 996                 exit(-1);
 997         }
 998
 999
1000         copydir("/rom", "/ram/cgi");
1001
1002         err = mount("/dev/flash1", "/config", "jffs2");
1003         if (err < 0)
1004         {
1005                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1006                 err = mount("", "/config", "ramfs");
1007                 if (err < 0)
1008                 {
1009                         diag_printf("unable to mount /config as ramdisk.\n");
1010                         reboot();
1011                 }
1012         }
1013         else
1014         {
1015                 /* are we using a ram disk instead of a flash disk? This is used
1016                  * for ZY1000 live demo...
1017                  *
1018                  * copy over flash disk to ram block device
1019                  */
1020                 if (boolParam("ramdisk"))
1021                 {
1022                         diag_printf("Unmounting /config from flash and using ram instead\n");
1023                         err = umount("/config");
1024                         if (err < 0)
1025                         {
1026                                 diag_printf("unable to unmount jffs\n");
1027                                 reboot();
1028                         }
1029
1030                         err = mount("/dev/flash1", "/config2", "jffs2");
1031                         if (err < 0)
1032                         {
1033                                 diag_printf("unable to mount jffs\n");
1034                                 reboot();
1035                         }
1036
1037                         err = mount("", "/config", "ramfs");
1038                         if (err < 0)
1039                         {
1040                                 diag_printf("unable to mount ram block device\n");
1041                                 reboot();
1042                         }
1043
1044                         //              copydir("/config2", "/config");
1045                         copyfile("/config2/ip", "/config/ip");
1046                         copydir("/config2/settings", "/config/settings");
1047
1048                         umount("/config2");
1049                 }
1050         }
1051
1052         mkdir(zylin_config_dir, 0777);
1053         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1054         mkdir(dirname, 0777);
1055         free(dirname);
1056         dirname = alloc_printf("%s/board", zylin_config_dir);
1057         mkdir(dirname, 0777);
1058         free(dirname);
1059         dirname = alloc_printf("%s/event", zylin_config_dir);
1060         mkdir(dirname, 0777);
1061         free(dirname);
1062
1063         logAllToSerial = boolParam("logserial");
1064
1065         // We need the network & web server in case there is something wrong with
1066         // the config files that invoke exit()
1067         zylinjtag_startNetwork();
1068
1069         /* we're going to access the jim interpreter from here on... */
1070         openocd_sleep_postlude();
1071         startUart();
1072
1073         add_default_dirs();
1074
1075         /* initialize commandline interface */
1076         struct command_context * cmd_ctx;
1077         cmd_ctx = setup_command_handler();
1078         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1079         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1080
1081 #if BUILD_IOUTIL
1082         if (ioutil_init(cmd_ctx) != ERROR_OK)
1083         {
1084                 return EXIT_FAILURE;
1085         }
1086 #endif
1087
1088
1089 #ifdef CYGPKG_PROFILE_GPROF
1090         register_command(cmd_ctx, NULL, "ecosboard_profile", eCosBoard_handle_eCosBoard_profile_command,
1091                         COMMAND_ANY, NULL);
1092 #endif
1093
1094         register_command(cmd_ctx, NULL, "uart", handle_uart_command, COMMAND_ANY,
1095                         "uart <baud>  - forward uart on port 5555");
1096
1097         int errVal;
1098         errVal = log_init(cmd_ctx);
1099         if (errVal != ERROR_OK)
1100         {
1101                 diag_printf("log_init() failed %d\n", errVal);
1102                 exit(-1);
1103         }
1104
1105         set_log_output(cmd_ctx, log);
1106
1107         LOG_DEBUG("log init complete");
1108
1109         //      diag_printf("Executing config files\n");
1110
1111         if (logAllToSerial)
1112         {
1113                 diag_printf(
1114                                  "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1115                 command_run_line(cmd_ctx, "debug_level 3");
1116         }
1117
1118         command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1119
1120         /* we MUST always run the init command as it will launch telnet sessions */
1121         command_run_line(cmd_ctx, "init");
1122
1123         // FIX!!!  Yuk!
1124         // diag_printf() is really invoked from many more places than we trust it
1125         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1126         //
1127         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1128         // fingers that it doesn't cause any crashes.
1129         diag_printf("Init complete, GDB & telnet servers launched.\n");
1130         command_set_output_handler(cmd_ctx,
1131                         zy1000_configuration_output_handler_log, NULL);
1132         if (!logAllToSerial)
1133         {
1134                 serialLog = false;
1135         }
1136
1137         /* handle network connections */
1138         server_loop(cmd_ctx);
1139         openocd_sleep_prelude();
1140
1141         /* shut server down */
1142         server_quit();
1143
1144         /* free commandline interface */
1145         command_done(cmd_ctx);
1146         umount("/config");
1147
1148         exit(0);
1149         for (;;)
1150                 ;
1151 }
1152
1153 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1154 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1155 {
1156         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1157         return 0;
1158 }
1159
1160 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1161
1162 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1163 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1164
1165 #include <pkgconf/system.h>
1166 #include <pkgconf/hal.h>
1167 #include <pkgconf/kernel.h>
1168 #include <pkgconf/io_fileio.h>
1169 #include <pkgconf/fs_rom.h>
1170
1171 #include <cyg/kernel/ktypes.h>         // base kernel types
1172 #include <cyg/infra/cyg_trac.h>        // tracing macros
1173 #include <cyg/infra/cyg_ass.h>         // assertion macros
1174 #include <cyg/fileio/fileio.h>
1175 #include <cyg/kernel/kapi.h>
1176 #include <cyg/infra/diag.h>
1177
1178 //==========================================================================
1179 // Eventually we want to eXecute In Place from the ROM in a protected
1180 // environment, so we'll need executables to be aligned to a boundary
1181 // suitable for MMU protection. A suitable boundary would be the 4k
1182 // boundary in all the CPU architectures I am currently aware of.
1183
1184 // Forward definitions
1185
1186 // Filesystem operations
1187 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1188 static int tftpfs_umount(cyg_mtab_entry *mte);
1189 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1190                 int mode, cyg_file *fte);
1191 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1192 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1193
1194 // File operations
1195 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1196 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1197 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1198
1199 //==========================================================================
1200 // Filesystem table entries
1201
1202 // -------------------------------------------------------------------------
1203 // Fstab entry.
1204 // This defines the entry in the filesystem table.
1205 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1206 // we should never block in any filesystem operations.
1207 #if 1
1208 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1209                 CYG_SYNCMODE_NONE,
1210                 tftpfs_mount,
1211                 tftpfs_umount,
1212                 tftpfs_open,
1213                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1214                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1215                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1216                 (cyg_fsop_rename *)cyg_fileio_erofs,
1217                 (cyg_fsop_link *)cyg_fileio_erofs,
1218                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1219                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1220                 (cyg_fsop_stat *)cyg_fileio_erofs,
1221                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1222                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1223 #endif
1224
1225 // -------------------------------------------------------------------------
1226 // mtab entry.
1227 // This defines a single ROMFS loaded into ROM at the configured address
1228 //
1229 // MTAB_ENTRY(rom_mte,  // structure name
1230 //              "/rom",         // mount point
1231 //              "romfs",        // FIlesystem type
1232 //              "",             // hardware device
1233 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1234 //);
1235
1236
1237 // -------------------------------------------------------------------------
1238 // File operations.
1239 // This set of file operations are used for normal open files.
1240
1241 static cyg_fileops tftpfs_fileops =
1242 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1243                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1244                 tftpfs_fo_fsync, tftpfs_fo_close,
1245                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1246                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1247                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1248
1249 // -------------------------------------------------------------------------
1250 // tftpfs_mount()
1251 // Process a mount request. This mainly finds root for the
1252 // filesystem.
1253
1254 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1255 {
1256         return ENOERR;
1257 }
1258
1259 static int tftpfs_umount(cyg_mtab_entry *mte)
1260 {
1261         return ENOERR;
1262 }
1263
1264 struct Tftp
1265 {
1266         int write;
1267         int readFile;
1268         cyg_uint8 *mem;
1269         int actual;
1270         char *server;
1271         char *file;
1272 };
1273
1274 static void freeTftp(struct Tftp *t)
1275 {
1276         if (t == NULL)
1277                 return;
1278         if (t->mem)
1279                 free(t->mem);
1280         if (t->server)
1281                 free(t->server);
1282         if (t->file)
1283                 free(t->file);
1284         free(t);
1285 }
1286
1287 static const int tftpMaxSize = 8192 * 1024;
1288 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1289                 int mode, cyg_file *file)
1290 {
1291         struct Tftp *tftp;
1292         tftp = malloc(sizeof(struct Tftp));
1293         if (tftp == NULL)
1294                 return EMFILE;
1295         memset(tftp, 0, sizeof(struct Tftp));
1296
1297         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1298         file->f_type = CYG_FILE_TYPE_FILE;
1299         file->f_ops = &tftpfs_fileops;
1300         file->f_offset = 0;
1301         file->f_data = 0;
1302         file->f_xops = 0;
1303
1304         tftp->mem = malloc(tftpMaxSize);
1305         if (tftp->mem == NULL)
1306         {
1307                 freeTftp(tftp);
1308                 return EMFILE;
1309         }
1310
1311         char *server = strchr(name, '/');
1312         if (server == NULL)
1313         {
1314                 freeTftp(tftp);
1315                 return EMFILE;
1316         }
1317
1318         tftp->server = malloc(server - name + 1);
1319         if (tftp->server == NULL)
1320         {
1321                 freeTftp(tftp);
1322                 return EMFILE;
1323         }
1324         strncpy(tftp->server, name, server - name);
1325         tftp->server[server - name] = 0;
1326
1327         tftp->file = strdup(server + 1);
1328         if (tftp->file == NULL)
1329         {
1330                 freeTftp(tftp);
1331                 return EMFILE;
1332         }
1333
1334         file->f_data = (CYG_ADDRWORD) tftp;
1335
1336         return ENOERR;
1337 }
1338
1339 static int fetchTftp(struct Tftp *tftp)
1340 {
1341         if (!tftp->readFile)
1342         {
1343                 int err;
1344                 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1345                                 tftpMaxSize, TFTP_OCTET, &err);
1346
1347                 if (tftp->actual < 0)
1348                 {
1349                         return EMFILE;
1350                 }
1351                 tftp->readFile = 1;
1352         }
1353         return ENOERR;
1354 }
1355
1356 // -------------------------------------------------------------------------
1357 // tftpfs_fo_write()
1358 // Read data from file.
1359
1360 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1361 {
1362         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1363
1364         if (fetchTftp(tftp) != ENOERR)
1365                 return EMFILE;
1366
1367         int i;
1368         off_t pos = fp->f_offset;
1369         int resid = 0;
1370         for (i = 0; i < uio->uio_iovcnt; i++)
1371         {
1372                 cyg_iovec *iov = &uio->uio_iov[i];
1373                 char *buf = (char *) iov->iov_base;
1374                 off_t len = iov->iov_len;
1375
1376                 if (len + pos > tftp->actual)
1377                 {
1378                         len = tftp->actual - pos;
1379                 }
1380                 resid += iov->iov_len - len;
1381
1382                 memcpy(buf, tftp->mem + pos, len);
1383                 pos += len;
1384
1385         }
1386         uio->uio_resid = resid;
1387         fp->f_offset = pos;
1388
1389         return ENOERR;
1390 }
1391
1392 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1393 {
1394         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1395
1396         int i;
1397         off_t pos = fp->f_offset;
1398         int resid = 0;
1399         for (i = 0; i < uio->uio_iovcnt; i++)
1400         {
1401                 cyg_iovec *iov = &uio->uio_iov[i];
1402                 char *buf = (char *) iov->iov_base;
1403                 off_t len = iov->iov_len;
1404
1405                 if (len + pos > tftpMaxSize)
1406                 {
1407                         len = tftpMaxSize - pos;
1408                 }
1409                 resid += iov->iov_len - len;
1410
1411                 memcpy(tftp->mem + pos, buf, len);
1412                 pos += len;
1413
1414         }
1415         uio->uio_resid = resid;
1416         fp->f_offset = pos;
1417
1418         tftp->write = 1;
1419
1420         return ENOERR;
1421 }
1422
1423 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1424 {
1425         int error = ENOERR;
1426         return error;
1427 }
1428
1429 // -------------------------------------------------------------------------
1430 // romfs_fo_close()
1431 // Close a file. We just clear out the data pointer.
1432
1433 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1434 {
1435         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1436         int error = ENOERR;
1437
1438         if (tftp->write)
1439         {
1440                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1441                                 TFTP_OCTET, &error);
1442         }
1443
1444         freeTftp(tftp);
1445         fp->f_data = 0;
1446         return error;
1447 }
1448
1449 // -------------------------------------------------------------------------
1450 // romfs_fo_lseek()
1451 // Seek to a new file position.
1452
1453 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1454 {
1455         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1456         off_t pos = *apos;
1457
1458         if (fetchTftp(tftp) != ENOERR)
1459                 return EMFILE;
1460
1461         switch (whence)
1462         {
1463         case SEEK_SET:
1464                 // Pos is already where we want to be.
1465                 break;
1466
1467         case SEEK_CUR:
1468                 // Add pos to current offset.
1469                 pos += fp->f_offset;
1470                 break;
1471
1472         case SEEK_END:
1473                 // Add pos to file size.
1474                 pos += tftp->actual;
1475                 break;
1476
1477         default:
1478                 return EINVAL;
1479         }
1480
1481         // Check that pos is still within current file size, or at the
1482         // very end.
1483         if (pos < 0 || pos > tftp->actual)
1484                 return EINVAL;
1485
1486         // All OK, set fp offset and return new position.
1487         *apos = fp->f_offset = pos;
1488
1489         return ENOERR;
1490 }
1491
1492 void usleep(int us)
1493 {
1494         if (us > 10000)
1495                 cyg_thread_delay(us / 10000 + 1);
1496         else
1497                 HAL_DELAY_US(us);
1498 }
1499
1500 // Chunked version.
1501 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1502 {
1503         cyg_httpd_start_chunked("text");
1504         if (logCount >= logSize)
1505         {
1506                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1507                                 - logCount % logSize);
1508         }
1509         cyg_httpd_write_chunked(logBuffer, writePtr);
1510         cyg_httpd_end_chunked();
1511         return -1;
1512 }
1513
1514 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1515
1516 // Filesystem operations
1517 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1518 static int logfs_umount(cyg_mtab_entry *mte);
1519 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1520                 int mode, cyg_file *fte);
1521 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1522
1523 // File operations
1524 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1525 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1526
1527 #include <cyg/io/devtab.h>
1528
1529 //==========================================================================
1530 // Filesystem table entries
1531
1532 // -------------------------------------------------------------------------
1533 // Fstab entry.
1534 // This defines the entry in the filesystem table.
1535 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1536 // we should never block in any filesystem operations.
1537 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1538                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1539                 logfs_mount,
1540                 logfs_umount,
1541                 logfs_open,
1542                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1543                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1544                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1545                 (cyg_fsop_rename *)cyg_fileio_erofs,
1546                 (cyg_fsop_link *)cyg_fileio_erofs,
1547                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1548                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1549                 (cyg_fsop_stat *)cyg_fileio_erofs,
1550                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1551                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1552
1553 // -------------------------------------------------------------------------
1554 // File operations.
1555 // This set of file operations are used for normal open files.
1556
1557 static cyg_fileops logfs_fileops =
1558 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1559                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1560                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1561                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1562                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1563                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1564
1565 // -------------------------------------------------------------------------
1566 // logfs_mount()
1567 // Process a mount request. This mainly finds root for the
1568 // filesystem.
1569
1570 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1571 {
1572         return ENOERR;
1573 }
1574
1575 static int logfs_umount(cyg_mtab_entry *mte)
1576 {
1577         return ENOERR;
1578 }
1579
1580 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1581                 int mode, cyg_file *file)
1582 {
1583         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1584         file->f_type = CYG_FILE_TYPE_FILE;
1585         file->f_ops = &logfs_fileops;
1586         file->f_offset = 0;
1587         file->f_data = 0;
1588         file->f_xops = 0;
1589         return ENOERR;
1590 }
1591
1592 // -------------------------------------------------------------------------
1593 // logfs_fo_write()
1594 // Write data to file.
1595
1596 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1597 {
1598         int i;
1599         for (i = 0; i < uio->uio_iovcnt; i++)
1600         {
1601                 cyg_iovec *iov = &uio->uio_iov[i];
1602                 char *buf = (char *) iov->iov_base;
1603                 off_t len = iov->iov_len;
1604
1605                 diag_write(buf, len);
1606         }
1607         uio->uio_resid = 0;
1608
1609         return ENOERR;
1610 }
1611 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1612 {
1613         return ENOERR;
1614 }
1615
1616 // -------------------------------------------------------------------------
1617 // romfs_fo_close()
1618 // Close a file. We just clear out the data pointer.
1619
1620 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1621 {
1622         return ENOERR;
1623 }
1624
1625 int loadFile(const char *fileName, void **data, int *len);
1626
1627 /* boolean parameter stored on config */
1628 int boolParam(char *var)
1629 {
1630         bool result = false;
1631         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1632         if (name == NULL)
1633                 return result;
1634
1635         void *data;
1636         int len;
1637         if (loadFile(name, &data, &len) == ERROR_OK)
1638         {
1639                 if (len > 1)
1640                         len = 1;
1641                 result = strncmp((char *) data, "1", len) == 0;
1642                 free(data);
1643         }
1644         free(name);
1645         return result;
1646 }
1647